Gearing for spinning or twisting machines.



s. B. ROY. GEARING FOR SPINNING OR TWISTING MACHINES.

APPLICATION FILED 1030.17, 1907.

Patented Dec. 16, 1913.

Z'SHEETg-SHEBT 1. I

S. B. ROY. GEARING FOR SPINNING OR TWISTING MACHINES.

APPLICATION FILED DBO.1'7, 190'7.

Patentedlku 16, 1913.

6m v d I I,

srnvauus a. not; or woacnsrn a, m'assacnu sn'rr's.

-GEABIlNG FOR SPINNING OB TWISTING MACHINES To all whom it may concern:

Be it known that I, SYLVANUS B. Ror, a citizen of the United States, residing at Worcester, in the count A of Worcester and- State of Massachusetts, ave invented a new anduseful Gearing for Spinning or. Twisting Machines, of which the following-is a specification.

The object of this invention is to provide a new and improved gearing for spinning machines so that the same may be arranged to spin and draw yarn to have slubs or flakes formed therein, which sluhs or flakes areformed by lightly drawn or 'undrawn sections.

H To this-end, the invention consists in com-' bming with the gearing for giving the feeding rolls their usual rotation, improved and Y simplified means for giving the same an 0 additional quick forwarding rotationso that ,the yarn intermittently will have a quick advance between the feeding and drawing rolls which will cause the yarn to have sec-' tions along its length I drawn or undrawn.

which are slightly The preferred .mechanism for imparting this peculiar movement comprises gearing for giving the feeding rolls their'usual rotation, which gearing may include a ratchetwheel and pawl, the driving of the feeding rolls being done through the pawl acting on the ratchet-wheel, and mechanism, preferably a mutilated gear and opinion, for giving the ratchet-wheel a quick advancing motion beyond the motionimparted by the awl. In some cases, a system of mutiated gearing may be used in place. of the ratchet and pawl mechanism.

..The invention is shown in the accompanying two sheets of drawings which illustrate enough of an ordinary-form of spinning and drawing frame to show how Y m improvement may be applied thereto;

eferring to the drawings andin detail,

Figure 1 is a sideelevation of the frame.

Fig. 2 is a sectional plan view through the .-rolls. taken along the plane of the yarn.

"Fig. dis a. view showmgthe 'yarn with slubs or flakes therein. fig. 4 is a side eleva-' tion of a modified form of gearing which may be employed to obtain the same result.

Fig. 5 1s a side elevation, and Fig. 6V is a "front elevationof another modified form of gearing.

{ Referring to the drawings detail, the

preferred form of the mechanism illustrated Specification of Letters Patent. V Application filed December 17, 1907. Serial No. 406,859.

Patented Dec.16, Q13.

in the first sheet of drawings will first be described In detail, A designates the frame, B one of the spools which carry the. roving, and C one of the spindles which rotates the usual bobbinwhich receives and spins the 1 In the drawings, the invention is shown as applied to a cap spinning frame in which E designates the cap surrounding the bob-' b1n,although it is to be understood that my invention can be applied to any form of spinningmachine. The roving is pulled from the spool B'by feeding rolls 10-10; is passed forward through three-sets of unweighted intermediate roll's 11-11, 11 11, 11-11 and is drawn or pulled out b the drawing rolls 1212, the drawing rol s 12 having a faster peripheral speed than the feeding rolls 10-10 to draw out the roving'in the usual 'way. The roving passes from the drawing rolls 1212 through an of the usual threadguicles T to the bobbin These parts may be arranged in the usual ways and further description of their operation is not necessary.

The unweighted intermediate rolls are arranged. to have a slight drawing action upon the roving, but their chief function is to retain the twist in the roving as it approaches the drawing rolls. If the intermediate 'rolls are omitted, the. long stretch of roving between the rolls 10 and the rolls 12 has a tendency to untwist and break between the rolls, and it is found impracticable to operate themachine without the interme-. diate rollsbein' in position.

The gear for driving the feeding rolls and as many as desired of the'intermediate rolls in the manner previously referred to is arranged as follows: 13 designates a driving or power shaft which is rotated from any of the usual mechanism of the machine or which may form an extension of one of the shafts of the drawing rolls 12-12. The shaft 13 has a pinion 14 mounted thereon which engages and drives a gear 15 loosely running on a stud 16. Connected to turn with, or formed as an integral part of the gear 15, is a mutilated ear 17 which has a small section of teeth ,1 (land also form'ed or secured tothe gears 15 and 17 is a gear 18, the gears 15, 17 and IS-turning as one piece "and the mutilated gear 17 being larger than lthereonis a-pinion 20-whichis set in p04;

'sition to be engaged by the teeth or the mu:

, tilated gear 17. Loosely mounted on the shaft 19 is a gear 21 which is in constant mesh with the gear 18. This loos'e' gear carries on its side a pawl 22 whichis ressed by a spring 23 to engage a ratchet-w eel 24 secured or fixed on the-shaft 19. As many of the intermediate ro'lls maybe geared to receive the peculiar motion imparted to the feeding 'rolls as desired.

In the device illustrated in the drawings, the lowermost intermediate roll is turned continuously by any of the usual forms of' gearing not necessary to describe, but the other two. intermediate rolls 11'1l are geared to have the peculiar motion given to.

the, feeding rolls -10. This may be continuously done by placing a pin on 25 .on

theshai't 19, which pinion' 'engages an intermcdiate 26 loosely mounted on a stud 27 which intermediate engages a pinion 28 secured on the central lower intermediate roll 11. The rear-most lower intermediate roll '11 may be driven by a pinion 29 secured on the lower feeding roll 10, which pinion engages an idle or intermediate gear 30 mounted on a stand 301 secured to the frameof the machine. The idle gear 30 engages and 'drives a pinion 302'securetl on the rear,

"lower intermediate roll 11, said roll accordingly partaking of the intermittent motion of the shaft 10. The lower of' the drawing rolls 12 is formed on the driving or power e5 proportioning this gearing, the flakes can 'ing rolls 10 10while the shaft 13. The stud 16 on which the three gears 15, 17 and 18 revolve may be secured in a bracket 31 which is held to the frame by: a bolt 32, and the stud 27 on which the intermediate 26 revolves may be mounted in a bracket 33 which is secured to the frame ward under the pawl, the pawl allowing this forward movement of the ratchet-wheel as }the ratchet-wheel teeth are made saw-like in shape for this purpose. This will cause a much quicker turning action of the feedear teeth 170 are in operation and hence wi l causea quick intermittent movement or forward jump of the yarn beyond the feeding rolls 1010. This will forma slub or flake in the yarn as this quickly advanced section will be lightly drawn by the action of the drawing rolls 1212- or not drawn at alh By properly be made as long-or as short as" desired and V can be made to come at any desired points length-wise of the yarn. By putting a plu-f rality of sections of teeth 170 around the gear 17,the-'numb er of slubs in the length .of yarn also can be varied in a convenient l Vhen it is desired tolznse the sp nning machine in an ordinary way,'all that s necessary is to put the mutilated gearing out of operation. Thiscan be doneby sliding" the pinion 20 back on the'shaft 19,,by taking the mutilated gear 17 off of the stud 16, or by disconnecting this gearing in any other way. In practice, the small sectionof teeth =17O of the mutilated gear 17 is 'made as a.

separate part and another way'this gearing can be disconnectedis to take out this short I. section of teeth;

In Fi 4 a device is provided whereby the rate et-wheel and pawl are not used. In this construction, a gear 180 is used correspon'ding'to the gear 18 of the previous device but this gear180 is only provided with teeth part way on its circumference and the gear 210- on the shaft 19 with which the 3 gear 180 meshesis fast. on the shaft l 9. 'lhespace in the teeth on the gear '180 is set to correspond with the teeth 170 of the mutilated gear 17 whereby when the teeth 17 0 take into the fixed pinion 20 .toturn the shaft atits accelerated speed, the gears 180 and 210 will be out of meshsdthat this ac'- tion can take place; During the iest-of the operation, theshaft19 will bedriven alia.

continuousspeed-b the teeth 'ofthe gear 180 meshing with t e teeth of the-gear 210. In the modification-shown in Figs. 5 and 6, the gear 18 meshes with a gear 35v which is loosely mounted on the end of the shaft 19, which gear35 carries a spring-pressed pawl 36 which engages a ratchet-wheel 37 secured to the shaft 19. Pivoted on the shaft 19 is a bell-crank lever 38, the short arm of which carries a spring-pressed pawl 39 which is set to engage a ratchet-wheel .40 secured on the shaft 19. The long arm of the bell-crank lever-38 is connected by a link 41 to a pivoted lever 42 which is set so as to be engaged by it pin 43 secured on a disk 44 mounted on on ofthe Power shafts 45 of the machine. In an ordinary operation, the shaft. 19 is driven at a. continuous speed through a gear wheel 18, gear wheel 35 and spring pawl 36 engaging the ratchet- Wheel 37, but when the pin 43 engages the end of the lever 42, the bell-crank lever 38 will be quickly oscillated in the direction indicated by the arrow which will cause the pawl 39 to engage and turn the ratchetwheel 40 forward much faster than the ratchet-wheel 37 is being turned which will impart a quick forwardff'movement to the feeding rolls.

In. the constant speed operation of the feeding rolls, the ratchet-wheelO turns forfunction of feeding or forwarding the yarn or one strand of the yarn to the bobbin. In

'this case the quick forwarding action of the rolls 1010 will'give a different eflect to that part of the yarn which is quickly advanced so as to give a novelty appearance.

Many other forms of gearing and arrangements may be devised for practising,

the improvement as previously described without departing from the scope of my invention as expressed in the claims.

' Having thus fully described my invention, -what I claim and desireto secure by Letters-Patent is Ina spinning or twisting machine, the combination of feeding rolls, intermediate rolls and drawing rolls, with a shaft connected with one of the drawing rolls, to rotate at constant speed, an idle gear driven constantly from said Shaft, a wheel loose on the-shaft of one of the feed rolls meshing with said idle gear, drivingconnections between said shaft and wheel whereby said wheel will rotate said shaft at a constant speed but will permit the shaft to be intermittently rotated at a higher speed, means for inter-mittently. rotating said shaft at said higher speed, means connected with said drawing roll shaft for rotating some vof the intermediaterolls positively therefrom at constant speed, and mean's'for driving the other intermediate ,rolls from the feed roll shaft and thereby varying their spized simultaneously with that of said feed r0 1.

In testimony whereof I have hereunto set my hand, in the presence of two subscribing wltnesses'.

, SYLVANUS B. ROY. 

